What is refracting periscope?

1.	What is refracting periscope?
Answer» Hii too shiva... Can I know your question? ? Hi priya please give answer I want it fast Periscope is used to observe objects around an obstacle. The light from the objects enters the periscope from one end and emerges from the other end and enters into our eyes. We use mirrors inside a periscope to make the light bend in the direction we want to see it.Periscope is an instrument used for observation around or through an obstacle that prevents direct line-in-sight observation from the observer position.

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